Just recently started where I can change photos in the grid view in Library module and the corresponding photo in the film strip will not highlight. Also whenever I use the F key for full screen, it only brings the last one used in the filmstrip and will not go to full screen from the grid view. Use this all the time for sorting and culling images. I have looked at all my setting and they do not appear to have changed. Help! This is a Windows 7 machine with the latest LR update for LR CC.